MAX3059ASA+T

MAX3059ASA+T is a Maxim Integrated (now Analog Devices) differential RS-485/RS-422 transceiver. It provides the line driver and receiver to connect a microcontroller’s UART to an RS-485/RS-422 multi-point bus. Key features typically include bidirectional data path with direction control, a failsafe receiver (defines a known level when the bus is idle or open), protection for ESD/shorts, and operation from a single 3.0–5.5 V supply with an industrial temperature range. The suffix ASA+T denotes a specific orderable variant and packaging (often automotive-grade and Tape & Reel); check the datasheet/packaging guide for exact meaning. Typical applications: industrial automation, building automation, and other RS-485/RS-422 networks. For exact electrical specs, pinout, timing, and recommended operating conditions, refer to the MAX3059 datasheet.

Equivalent parts are other RS-485/RS-422 transceivers with similar specs. Major options include TI SN65HVD178x series, Analog Devices ADM485/ADM248x, and Maxim MAX485/MAX487. Exact replacement depends on supply voltage, bus speed, isolation, and pinout; share your 3.3V/5V requirement and needed features for precise substitutions.

Pin count: 8 pins (SOP-8/SSOP-8).
Function: MAX3059ASA+T is a single-channel, high-speed, half-duplex RS-485/RS-422 transceiver with driver and receiver. It provides DI (data in) and RO (data out) data pins, DE (driver enable) and /RE (receiver enable), and differential bus pins A and B, plus power (VCC) and ground (GND). The +T suffix indicates Tape-and-Reel packaging; ASA indicates the package variant.

Manufacturer: Maxim Integrated Products (now part of Analog Devices, Inc.).
What kind of company: A semiconductor company specializing in analog and mixed-signal integrated circuits; historically fabless (designs ICs and outsources fabrication).

MAX3059ASA+T is used as a high-speed differential serial transceiver. Typical application areas include:
- Industrial automation (PLCs, RTUs, RS-485/RS-422 networks)
- Process control and instrumentation
- Data acquisition systems
- Automotive networks and in-vehicle communications
- Telecom and networking equipment requiring robust serial links
- Remote telemetry and SCADA systems
(Designed for noisy industrial environments and multi-drop differential signaling.)

MAX3059ASA+T uses an 8-pin surface-mount package (SOIC-8/SOP-8). The “+T” suffix indicates Tape & Reel packaging.